Now showing items 1-20 of 44

    • A competitive variable neighbourhood search algorithm for the blocking flow shop problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2013-12-23)
      Article
      Restricted access - publisher's policy
    • A discussion on the selection of prototypes for kansei engineering study 

      Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Schütte, Simon (2016)
      Conference report
      Restricted access - publisher's policy
      One of the steps in a kansei engineering study is the evaluation of prototypes by users. Usually, the participants in the study give ratings to each one of the prototypes either using a semantic differential method or a ...
    • A maturity model for the information-driven SME 

      Parra, Xileidys; Tort-Martorell Llabrés, Xavier; Ruiz Viñals, Carmen; Álvarez Gómez, Fernando (OmniaScience, 2019-04)
      Article
      Open Access
      Purpose: This article presents a maturity model for the evaluation of the information-driven decision-making process (DMP) in small and medium enterprises. This model is called “Simplified Holistic Approach to DMP Evaluation ...
    • Algoritmo para la elección de fracciones factoriales con óptima proyección 

      Tort-Martorell Llabrés, Xavier; Prat Bartés, Albert (Universitat Politècnica de Barcelona. Centre de Càlcul, 1986-06)
      Article
      Open Access
      En cualquier proceso industrial hay dos fases, diseño del producto y producción donde experimentos cuidadosamente diseñados pueden contribuir enormemente a aumentar la calidad del producto final. En ambos casos el interés ...
    • An approach to disaggregating total household water consumption into major end-uses 

      Fontdecaba Rigat, Sara; Sánchez Espigares, Josep Anton; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Cabrespina, Francesc; Zubelzu, Jordi (2013-01-27)
      Article
      Restricted access - publisher's policy
      The aim of this project is to assign domestic water consumption to different devices based on the information provided by the water meter. We monitored a sample of Barcelona and Murcia with flow switches that recorded ...
    • An efficient discrete artificial bee colony algorithm for the blocking flow shop problem with total flowtime minimization 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2015-09-01)
      Article
      Open Access
      This paper presents a high performing Discrete Artificial Bee Colony algorithm for the blocking flow shop problem with flow time criterion. To develop the proposed algorithm, we considered four strategies for the food ...
    • An efficient hybrid iterated local search algorithm for the total tardiness blocking flow shop problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2012-09-04)
      External research report
      Open Access
      This paper deals with the blocking flow shop problem and proposes an Iterated Local Search (ILS) procedure combined with a variable neighbourhood search (VNS) for the total tardiness minimization. The proposed ILS makes ...
    • An efficient iterated local search algorithm for the total tardiness blocking flow shop problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (Taylor & Francis, 2013-04-27)
      Article
      Restricted access - publisher's policy
      This paper deals with the blocking flow shop problem and proposes an Iterated Local Search (ILS) procedure combined with a variable neighbourhood search (VNS) for the total tardiness minimisation. The proposed ILS makes ...
    • Application of Kansei Engineering to Design an Industrial Enclosure 

      Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier (2014)
      Conference report
      Open Access
      Kansei Engineering (KE) is a technique used to incorporate emotions in the product design process. Its basic purpose is discovering in which way some properties of a product convey certain emotions in its users. It is a ...
    • Assessment of information-driven decision-making in the SME 

      Parra Vivas, Xileidys; Tort-Martorell Llabrés, Xavier (2016)
      Conference report
      Open Access
      The use of analytics in decision -making processes is a key element for organizations to be competitive. However, experience indicates that many organizations still have not managed to fully understand how to use properly ...
    • BBVA: la innovación abierta en empresas de servicios 

      Ramis Pujol, Joan; Droege, Henning; Tort-Martorell Llabrés, Xavier (2013)
      Article
      Open Access
      La innovación abierta es un camino ideal para encontrar y desarrollar nuevas ideas. Una empresa de servicios, como una entidad financiera, también puede beneficiarse de ella, puesto que, por ejemplo, externalizando la ...
    • Blocking versus robustness in industrial contexts 

      Grima Cintas, Pedro; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier (2017-01-01)
      Article
      Open Access
      The paper discusses the similarities and differences between blocking factors (blocked designs) and noise factors (robust designs) in industrial two-level factorial experiments. The discussion covers from the objectives ...
    • CHROMA: a maturity model for the information-driven decision-making process 

      Tort-Martorell Llabrés, Xavier; Parra, Xileidys (2017)
      Article
      Restricted access - publisher's policy
      A novel maturity model for the information-driven decision-making process (DMP) in organisations is presented. The 'circumplex hierarchical representation of organisation maturity assessment' (CHROMA) model was developed ...
    • Comparing three-step heuristics for the permutation flow shop problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2010-03-03)
      Article
      Restricted access - publisher's policy
      In this paper a three steps heuristic for the permutation flow shop problem is proposed. The objective is to minimize the maximum time for completing the jobs, or the makespan. The first two steps are inspired by the NEH ...
    • Consequences of using estimated response values from negligible interactions in factorial designs 

      Xampeny Solani, Rafael; Grima Cintas, Pedro; Tort-Martorell Llabrés, Xavier (2018-12-21)
      Article
      Open Access
      This article analyzes the increase in the probability of committing type I and type II errors in assessing the significance of the effects when some properly selected runs have not been carried out and their responses have ...
    • Development of an open application for teaching statistics: conception and results 

      Serrahima de Cambra, Eduard; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Grima Cintas, Pedro; Rodero de Lamo, Lourdes (2015)
      Conference report
      Open Access
      Different commercial statistical software packages exist that are appropriate for teaching statistics. However, free alternatives are scarce, and those existing suffer from problems (such as difficult installations and ...
    • Diseños factoriales fraccionales aplicación al control de calidad mediante el diseño de productos y procesos 

      Tort-Martorell Llabrés, Xavier (Universitat Politècnica de Catalunya, 1984-01-24)
      Doctoral thesis
      Open Access
      Los procesos industriales tienen tres fases diseño del producto del proceso y producción en las que experimentos cuidadosamente diseñados pueden aumentar la calidad del producto y la productividad del proceso. <br/>En ...
    • Disseny i implementació d’un cas pràctic d’introducció a l’estadística basat en la presa de decisions realistes sobre dades simulades 

      Tort-Martorell Llabrés, Xavier; Camps Lorente, Oriol; Grima Cintas, Pedro; Marco Almagro, Lluís; Puig Oriol, Xavier; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Riba Civil, Alexandre; Berenguer Guerra, Victor; Jurado Margarit, Adriana; Magriñà Amat, Carlos (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
      Conference report / Conference lecture
      Open Access
      Un diagnòstic de les pràctiques d'estadística va portar a proposar per a una nova assignatura un joc competitiu en línia de presa de decisions basades en l'estadística. Aquest utilitza dades simulades i un web en què ...
    • Efficient heuristics for the parallel blocking flow shop scheduling problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2017-05-15)
      Article
      Open Access
      We consider the NP-hard problem of scheduling n jobs in F identical parallel flow shops, each consisting of a series of m machines, and doing so with a blocking constraint. The applied criterion is to minimize the makespan, ...
    • El Modelo EFQM aplicado a la universidad : un caso práctico 

      Massó Pérez, Xavier; Tort-Martorell Llabrés, Xavier (Edicions UPC, 2000)
      Book
      Restricted access to the UPC academic community
      El presente libro desarrolla un caso práctico de autoevaluación de una universidad según el Mo-delo de Excelencia de la EFQM. La Universidad Autónoma del Atlántico (UAA) es una universidad ficticia, cuya realidad han ...